Cordyceps sinensis is a fungus that has been used by traditional Chinese herbalists for its energizing and adaptogenic properties for centuries.* Cordyceps has numerous bioactive compounds, including polysaccharides and nucleosides, which have been studied for their broad range of biological activities.* Modern scientific studies have shown that cordyceps constituents possess free radical scavenging properties and suggest that they may also support a healthy immune system and promote normal vascular function.*